Nope. What they really need is large-scale water desalinization using nuclear power to turn the deserts into arable land. Just all that vegetation from turning all that desert into farmland would drastically alter the weather.
Set up a string of Thorium Molten Salt reactors all along the coastal region of the African countries bordering the Red Sea and the Indian Ocean, and use them to drive desalination plants, evaporating the sea water and recovering the mineral wealth dissolved in the sea water. The water vapor is released into the atmosphere where it has the multiple effect of COOLING the vast area of the Sahara, and to fall as rain, making a vast increase in the arable land on this continent, and making Africa once again attractive to the vast numbers of migrants who have fled to Europe and elsewhere.
The desert can bloom again.
Good post, and points to the correct solution